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- Founded: 1899 by Isaac Rice, originally named the Electric Boat Company, established to build John Philip Holland’s submarine designs. One year later, the USS Holland—the first submarine commissioned by the U.S. Navy—was launched.
- Mission: Since then, GDEB has become a premier naval defense contractor, specializing in the design, construction, and lifecycle support of submarines for the U.S. Navy.
- Key Facilities:
- Shipyard in Groton, Connecticut
- Hull-fabrication and outfitting facility in Quonset Point, Rhode Island
- Design and engineering office in New London, Connecticut
- Employment Size: Approximately 19,500 employees, including over 13,400 in Connecticut locations.
- Recent Developments:
- In Q2 2025, the Marine Systems division (which includes Electric Boat) reported revenues of $4.2 billion, a 22% year-over-year increase, with operating earnings rising 19% to $291 million—driven by Virginia-class and Columbia-class submarine programs.
- Employment expansion: GDEB plans to hire 3,050 new employees in 2025 across sites in Connecticut and Rhode Island.